信号处理中的旋转不变子空间法，Relief计算分类权重，利用贝叶斯原理估计混合logit模型的参数，三相光伏逆变并网的仿真，计算多重分形非趋势波动分析，验证可用。- Signal Processing ESPRIT method, Relief computing classification weight, Bayesian parameter estimation principle mixed logit model, Three-phase photovoltaic inverter and network simulation, Calculate the multifractal trend fluctuation analysis, Verification is available.